Lantao Jin created SPARK-23353:
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Summary: Allow ExecutorMetricsUpdate events to be logged to the
event log with sampling
Key: SPARK-23353
URL: https://issues.apache.org/jira/browse/SPARK-23353
Project: Spark
Issue Type: Improvement
Components: Spark Core
Affects Versions: 2.2.1
Reporter: Lantao Jin
[SPARK-22050|https://issues.apache.org/jira/browse/SPARK-22050] give a way to
log BlockUpdated events. Actually, the ExecutorMetricsUpdates are also very
useful if it can be persisted for further analysis.
As a performance reason and actual use case, the PR offers a fraction
configuration which can sample the events to be persisted. we also refactor for
BlockUpdated with the same sampling way.
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